Dust-guard.



PATENTED OCT. 24, 1905.

J. W. STEPHENSON.

DUST GUARD.

APPLICATION FILED AUG. 29, 1904.

2 SHEETS-SHEET l.

INVENTOR WBTNESSES TINTTED STATES PATENT OFFTUE,

JOHN W. STEPHENSON, OF- TOLEDO, OHIO, ASSIGNOR TO THE NATIONAL MALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO, A CORPORA- TION OF OHIO.

DUST-GUARD.

Specification of Letters Patent.

Patented Oct. 24E, 1905.

To all whom it may concern-.-

Be it known that I, J OHN W. STEPHENSON, of Toledo, Lucas county, Ohio, have invented a new and useful Dust-Guard, of which the following is afull, clear, and exact description, reference being had to the accompanyingdrawings, forming part of this specification, in which Figure 1 is a rear elevation of a journal-box constructed in accordance with my invention, the car-axle being shown in vertical crosssection. Fig. 2 is a plan View, partly in horizontal section, on the line II II of Fig. 1. Fig. 3 is a vertical section on the line III III of Fig. 1. Fig. 4 is a detail view showing the packing-ring, and Fig. 5 is a perspective view of the lock by which the cover-plate and dust ring are retained.

My invention is designed to provide means for effectually excluding dust from. entering the rear end of a car-axle box. The problem of thus excluding the dust is a difficult one, because the contracted space at the back of such box makes it difficult to apply efficient devices for the purpose.

My invention accomplishes the result by very simple means which do not add substan tially to the'weight of the parts and which are not clumsy and can be removed and adjusted quickly.

In the drawings, 2 is the car-axle journal.

3 is the box, and I is the car-wheel hub. At the rear of the box, in a recess 5 thereon, is a ring 6 of L shape in cross-section. This ring has an opening of greater diameter than the diameter of the axle, so as to fitloosely thereon, and it also has freedom of movement in the recess 5. The ring 6 carries a packing-ring 7, which is sectional and is seated in the ring 6 and is held therein by a flat cover-ring 8, which fits against the ring 6 and against the rear face of the axle-box. The cover-ring 8 is provided at its upper portion with supporting projections 9, which rest upon the ring 6 and support the cover-ring, and the coverring may be held in place by locking devices 10, similar to those shown in my Patent No. 742,750, which are held to the axle-box by bolts 11, fitted with springs 12 and cotters 13, or the cover-ring may be otherwise held. It moves with the axle and with the ring 6 in the vertical motion of the axle and slides freely against the rear face of the box and back of the locks 10. The locks 10, unlike the locks of my said patent, do not slide with the axle; but the rings 6 and 8 slide independently of the locks. The locks 10 have pro jections 10, which [it in small recesses on the face of the journal-box, as shown in Figs. 3 and 5.

The use of the dust-guard ring 6 and the retaining-ring 8 makes the device extremely simple in construction and very light and enables it to be removed and adjusted quickly.

The parts may be modified in various ways within the scope of my invention, since What I claim is 1. In combination with ajournal-box,a dustguard comprising a packing-carrying ring placed loosely around the axle, and a separate sliding cover-ring over saidpacking-ring; substantially as described.

2; In combination with a journal-box,a d ustguard comprising a ringplaced loosely around the axle-opening and adapted to carry packing material, and a sliding cover-ring over the said ring and bearing against the rear outer face of the journal-box; substantially as described.

3. In combination with a j ourna lbox,a dustguard comprising a ring placed loosely around the axle-opening in a recess'in the rear face of the journal-box, and a sliding cover-ring fitting against the rear outer face of the journal-box over the said ring; substantially as described.

4. In combination with a journal-box, a dustguard comprising a packing-carrying ring placed loosely around the axle-opening, and a cover-ring fitting against the rear outer face of the journal-box over the said ring and supported thereby; substantially as described.

5. In combination with a journal-box, a dustguard comprising a packing-carrying ring placed loosely around the axle-opening, and a cover-ring fitting over the said ring and supported thereby, said cover-ring having a sliding bearing against the rear outer face of the journal-box; substantially as described.

6. In combination with ajournalbox,a dustguard comprising an open-sided ring of angular cross-section for carrying packing material, and a sliding cover-ring fitting over the said ring and bearing against the rear outer face of the box; substantially as described.

7. In combination with ajournal-box,a dustguard comprising a ring placed around the axle-opening and adapted to carry packing material, and aseparate sliding cover-ring fitring, a sliding cover-ring, and a lock for the ting 0ver.the said ring, and over the packing cover-ring, said cover-ring bearing against material; substantially as described. the rear outer face of the box and sliding With 8. In combination with ajournal-b0X,adust the packing-carrying ring independently of 5 5 guard comprising a ring of angular cross-secthe lock; substantially as described.

tion for carrying packing material, and a In testimony whereof I have hereunto set cover-ring fitting over said ring and over the my hand.

packing material and bearing on the rear JOHN V. STEPHENSON. outer face of the journal-box; substantially WVitnesses: 10 as described. J. J. MANNING,

9. A journal-box havingapacking-carrying THOMAS WV. BAKEWELL. 

